Brushing-On RTV2 Tin Cure Liquid Silicone Mold Rubber For Resin Sculpture

Product Description

Tin Cure Liquid Silicone rubber is is generally named as two-part room temperature sulfurated silicone rubber, which features an exceptional fluidity and good operability. When mixed with 2% curing agent, they can still be operated within 30 minutes, but will be formed after 4-6 hours. With resistance to deformation, high temperature, acid and alkali, and expansion.

Typical Properties of Brushing-On RTV-2 silicone liquid rubber

Instructions of Silicone Liquid Rubber

The procedure and instruction of brushing(eight steps):

Step 1 Handle the original mold

Choose a prefect original mold, Manually polish and smooth the model, clean the surface and dry it.

Step 2 Clay & mold-line

Choose the right parting mold-line,then it is better for us to draw the mold-line on the model.Put the fixed model on flat wooden board. Then cover one part of mold line with clay, and the other part is exposed . Coating a layer of mold release agent on the exposed part.

Step 3 Weight part A & part B

Weighting two parts in Electronic scale with mix ratio 100:2 or 100:5.

Step 4 Stirring evenly

Remember to mix part A and part B evenly

Step 5 Vacuum pumping

For releasing the air bubbles, after mixing evenly, put the mixture into vacuum pumping for 3-5 minutes

Step 6 First layer

Evenly brush the first layer of mixed silicon rubber on the model. it should not be too thick

Step 7 Second layer

Brush the second layer of silicon rubber after the first one is cured. Normally the second layer should be 3-5mm, Cover a gauze or cloth on it when the second layer’s cross linking reaction goes on, and use a brush to avoid any interstices. Evenly brush the third layer of mixed silicon rubber on the gauze or cloth

Step 8 Outer molding

Way 1:pouring

Way 2: brushing

Package of RTV-2 Silicone Liquid Rubber

Part A base silicone: 25kg/drum or 200kg/drum
Part B CA30 Curing Agent: 800g/bottle, 1kg/bottle

Storage & Shelf life

When the silicone rubber is stored at or below 25℃ (77℉) with the original unopened containers, Silicone Base and Curing agent have a usable life of 12 months from the date of production. After 12 months stock, please use the Stir machine to mix the Part A silicone for some minutes, then the silicone can be used again, no influence for other performance.